Why do you think it is a libusb hotplug bug? What bugs _exactly_ are you referring too?
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pcsc-lite in Ubuntu. https://bugs.launchpad.net/bugs/1406255 Title: Several NFC readers do not initialize properly due to pcsclite bug Status in pcsc-lite package in Ubuntu: New Bug description: Several NFC readers do not work properly due to pcsclite bug (in libusb hotplug). Bugs were fixed in version 1.8.13, but Trusty uses old 1.8.10 version. http://anonscm.debian.org/viewvc/pcsclite/trunk/PCSC/ChangeLog?view=co pcscd logs: 1. Reader ACS122U: 42850162 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x072F, PID: 0x2200, path: /dev/bus/usb/001/019 00000012 hotplug_libudev.c:321:HPAddDevice() Adding USB device: ACS ACR122U 00000026 readerfactory.c:989:RFInitializeReader() Attempting startup of ACS ACR122U 00 00 using /usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Linux/libacsccid.so 00000104 readerfactory.c:874:RFBindFunctions() Loading IFD Handler 3.0 00000020 ifdhandler.c:2577:init_driver() Driver version: 1.1.0 00000176 ifdhandler.c:2594:init_driver() LogLevel: 0x0003 00000005 ifdhandler.c:2605:init_driver() DriverOptions: 0x0000 00000004 ifdhandler.c:2613:init_driver() ACSDriverOptions: 0x0003 00000004 ifdhandler.c:2621:init_driver() ACR38CardVoltage: 0 00000004 ifdhandler.c:2629:init_driver() ACR38CardType: 0 00000029 ifdhandler.c:104:CreateChannelByNameOrChannel() Lun: 0, device: usb:072f/2200:libudev:0:/dev/bus/usb/001/019 00000013 ccid_usb.c:307:OpenUSBByName() Using: /usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Info.plist 00000159 ccid_usb.c:325:OpenUSBByName() ifdManufacturerString: Advanced Card Systems Ltd. 00000004 ccid_usb.c:326:OpenUSBByName() ifdProductString: ACS CCID driver 00000003 ccid_usb.c:327:OpenUSBByName() Copyright: This driver is protected by terms of the GNU Lesser General Public License version 2.1, or (at your option) any later version. 00003508 ccid_usb.c:680:OpenUSBByName() Can't claim interface 1/19: -6 00000017 ccid_usb.c:214:close_libusb_if_needed() libusb_exit 00004646 ifdhandler.c:140:CreateChannelByNameOrChannel() failed 00000015 readerfactory.c:1020:RFInitializeReader() Open Port 0x200000 Failed (usb:072f/2200:libudev:0:/dev/bus/usb/001/019) 00000008 readerfactory.c:312:RFAddReader() ACS ACR122U init failed. 00000009 readerfactory.c:535:RFRemoveReader() UnrefReader() count was: 1 00000009 readerfactory.c:1040:RFUnInitializeReader() Attempting shutdown of ACS ACR122U 00 00. 00000008 readerfactory.c:911:RFUnloadReader() Unloading reader driver. 00000070 hotplug_libudev.c:391:HPAddDevice() Failed adding USB device: ACS ACR122U 2. Reader SCL3711: 04276562 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x04E6, PID: 0x5591, path: /dev/bus/usb/001/018 00000011 hotplug_libudev.c:321:HPAddDevice() Adding USB device: SCL3711 Reader and NFC Device 00000027 readerfactory.c:989:RFInitializeReader() Attempting startup of SCL3711 Reader and NFC Device 00 00 using /usr/lib/pcsc/drivers/SCx371x.bundle/Contents/Linux/libSCx371x.so.2.18 00000124 readerfactory.c:874:RFBindFunctions() Loading IFD Handler 3.0 Loading lib v2.18 00049066 readerfactory.c:1020:RFInitializeReader() Open Port 0x200000 Failed (usb:04e6/5591:libudev:0:/dev/bus/usb/001/018) 00000012 readerfactory.c:312:RFAddReader() SCL3711 Reader and NFC Device init failed. 00000004 readerfactory.c:535:RFRemoveReader() UnrefReader() count was: 1 00000004 readerfactory.c:1040:RFUnInitializeReader() Attempting shutdown of SCL3711 Reader and NFC Device 00 00. 00000003 readerfactory.c:911:RFUnloadReader() Unloading reader driver. 00000034 hotplug_libudev.c:391:HPAddDevice() Failed adding USB device: SCL3711 Reader and NFC Device ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: libpcsclite1 1.8.10-1ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 Date: Tue Dec 30 13:38:53 2014 Dependencies: gcc-4.9-base 4.9.1-0ubuntu1 libc6 2.19-0ubuntu6.4 libgcc1 1:4.9.1-0ubuntu1 multiarch-support 2.19-0ubuntu6.4 InstallationDate: Installed on 2014-10-14 (76 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=pl_PL.UTF-8 SHELL=/bin/bash SourcePackage: pcsc-lite UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1406255/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp